Apohealth Epsom Salts aids in bath relaxation with easy to dissolve crystals. How to use Dissolve 375g (1.5 cups) in an average size bath of warm water. Ingredients Magnesium Sulfate Warnings During hot weather or when left exposed, Epsom Salts loses some of the water responsible for its bright crystalline appearance and may acquire a white frosted appearance. This has no significant effect on its properties. All reasonable efforts have been made to ensure that ingredient listings for products displayed on this website are up to date, accurate and complete. Please check ingredient listings for products before use or check in store.